213032551340 has 192 divisors, whose sum is σ = 528762415104. Its totient is φ = 70582966272.

The previous prime is 213032551339. The next prime is 213032551409. The reversal of 213032551340 is 43155230312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 314671082 + ... + 314671758.

It is an arithmetic number, because the mean of its divisors is an integer number (2753970912).

Almost surely, 2^213032551340 is an apocalyptic number.

213032551340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213032551340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264381207552).

213032551340 is an abundant number, since it is smaller than the sum of its proper divisors (315729863764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213032551340 is a wasteful number, since it uses less digits than its factorization.

213032551340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 213032551340 its reverse (43155230312), we get a palindrome (256187781652).

The spelling of 213032551340 in words is "two hundred thirteen billion, thirty-two million, five hundred fifty-one thousand, three hundred forty".